CA2636330C - Method and apparatus for processing an audio signal - Google Patents

Method and apparatus for processing an audio signal Download PDF

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Publication number
CA2636330C
CA2636330C CA2636330A CA2636330A CA2636330C CA 2636330 C CA2636330 C CA 2636330C CA 2636330 A CA2636330 A CA 2636330A CA 2636330 A CA2636330 A CA 2636330A CA 2636330 C CA2636330 C CA 2636330C
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Prior art keywords
signal
extension
ancillary
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length information
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CA2636330A
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English (en)
French (fr)
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CA2636330A1 (en
Inventor
Hee Suck Pang
Dong Soo Kim
Jae Hyun Lim
Hyen O. Oh
Yang Won Jung
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LG Electronics Inc
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LG Electronics Inc
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Priority claimed from KR1020070013364A external-priority patent/KR20070087494A/ko
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Priority claimed from PCT/KR2007/000866 external-priority patent/WO2007097550A1/en
Publication of CA2636330A1 publication Critical patent/CA2636330A1/en
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Publication of CA2636330C publication Critical patent/CA2636330C/en
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/439—Processing of audio elementary streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
CA2636330A 2006-02-23 2007-02-16 Method and apparatus for processing an audio signal Active CA2636330C (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
US77577506P 2006-02-23 2006-02-23
US60/775,775 2006-02-23
US79190706P 2006-04-14 2006-04-14
US60/791,907 2006-04-14
US80382506P 2006-06-02 2006-06-02
US60/803,825 2006-06-02
KR1020070013364A KR20070087494A (ko) 2006-02-23 2007-02-08 멀티 채널 오디오 신호의 디코딩 방법 및 장치
KR10-2007-0013364 2007-02-08
PCT/KR2007/000866 WO2007097550A1 (en) 2006-02-23 2007-02-16 Method and apparatus for processing an audio signal

Publications (2)

Publication Number Publication Date
CA2636330A1 CA2636330A1 (en) 2007-08-30
CA2636330C true CA2636330C (en) 2012-05-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA2636330A Active CA2636330C (en) 2006-02-23 2007-02-16 Method and apparatus for processing an audio signal

Country Status (10)

Country Link
US (4) US7991494B2 (ja)
EP (4) EP1987597B1 (ja)
JP (4) JP5394753B2 (ja)
KR (5) KR100904436B1 (ja)
BR (1) BRPI0706488A2 (ja)
CA (1) CA2636330C (ja)
ES (4) ES2413807T3 (ja)
HK (1) HK1127825A1 (ja)
TW (5) TWI336599B (ja)
WO (1) WO2007097549A1 (ja)

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Also Published As

Publication number Publication date
BRPI0706488A2 (pt) 2011-03-29
JP5394754B2 (ja) 2014-01-22
TW200741650A (en) 2007-11-01
JP5394753B2 (ja) 2014-01-22
EP1987594A1 (en) 2008-11-05
EP1987595A4 (en) 2010-03-03
KR101276849B1 (ko) 2013-06-18
KR20080095894A (ko) 2008-10-29
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